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Precision Sockets CNC Machining for Testing Units

Precision sockets are precision-engineered and machined electrical contact assemblies. These test contact assemblies maintain signal precision and close mechanical alignment in high-volume automated semiconductor testing and electronics validation environments. Zintilon has become a leader in precision sockets, CNC machining by micro-milling, and EDM machining for contact positioning precision, insertion cycling durability for a cycle life of 50,000, electrical repeatability in IC test handlers, burn-in systems, functional test fixtures, and automated board testers.
  • Machining for complex socket geometries and micro-contact arrays
  • Tight tolerances up to ±0.001 in
  • Precision CNC milling, EDM & wire cutting
  • Support for rapid prototyping and full-scale production
  • ISO 9001-certified test equipment manufacturing
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Trusted by 15,000+ businesses

Why Semi-conductor Companies
Choose Zintilon

prductivity

Increased Productivity

Engineers get time back by not dealing with immature supply chains or lack of supply chain staffing in their company and get parts fast.

10x

10x Tighter Tolerances

Zintilon can machine parts with tolerances as tight as+/ - 0.0001 in -10x greater precision compared to other leading services.

world

World Class Quality

Zintilon provides aerospace parts for leading aerospace enterprises, verified to be compliant with ISO9001 quality standard by a certified registrar. Also, our network includes AS9100 certified manufacturing partners, as needed.

From Prototyping to Mass Production

Zintilon provides CNC machining for precision sockets and test contact components to semiconductor test equipment manufacturers, electronics test system builders, automated test equipment integrators, and validation fixture suppliers around the globe.

Prototype Precision Sockets

Make functional prototypes that check for proper contact alignment and integration with either the device handlers or the test head assemblies. Before moving into production, verify electrical continuity, check uniformity of insertion forces, and validate signal integrity performance.

Key Points:

  • Rapid prototyping with high precision

  • Tight tolerances (±0.001 in)

  • Test design, contact resistance, and cycle life early


3 Axis CNC Machined Stainless Steel Passivation

EVT – Engineering Validation Test

Agility in constructing socket prototypes is crucial to meeting electrical performance and mechanical robustness parameters. Troubleshooting and issue identification must occur early to secure a smooth transition into the manufacturing of full-scale test equipment.

Key Points:

  • Validate prototype functionality

  • Rapid design iterations

  • Ensure readiness for production


Anodized Aluminum 1024x536

DVT – Design Validation Test

Test a variety of materials to validate precision socket dimensions and electrical properties. This is to ensure design accuracy and optimal test reliability before commencing high-volume production.

Key Points:

  • Confirm design integrity and contact accuracy

  • Test multiple materials and configurations

  • Ensure production-ready performance


design aluminium

PVT – Production Validation Test

Determine the obstacles concerning the high-volume production of precision sockets. Assessing production feasibility is important for maintaining efficiency and consistency before commencing full production.

Key Points:

  • Test the large-scale production capability

  • Detect and fix process issues early

  • Ensure consistent part quality


Anodized Titanium Fastener

Mass Production

We produce precision-engineered sockets and provide on-time shipments that guarantee reliability of testing systems throughout transport to semiconductor testing facilities, electronic manufacturers, and tier-1 automated test equipment manufacturers.

Key Points:

  • Consistent, high-volume production

  • Precision machining for electrical accuracy

  • Fast turnaround with strict quality control


production

Simplified Sourcing for
the Semi-conductor Industry

Our aviation industry parts manufacturing capabilities have been verified by many listed companies. We provide a variety of manufacturing processes and surface treatments for aerospace parts including titanium alloys and aluminum alloys.

Explore Other Semiconductor Components

Browse our complete selection of CNC machined semiconductor components, crafted for durability and ultra-tight tolerances. From precision tooling and fixture parts to vacuum chambers and wafer handling systems, we deliver solutions tailored to advanced semiconductor production.

Testing Unit Precision Socket Machining Capabilities

Test equipment machinists and our Swiss-type CNC lathes and micro-EDM systems work in unison to produce Precision Sockets CNC Machining for Testing Units; for tampon spring pogo pin sockets, zero insertion force contacts, RF test sockets with reversed high-frequency coaxial cables, and test sockets with impedances for controlled coaxial cables, and other components are designed to guarantee that signal integrity, contact reliability, and thermal stability are fully achieved. We specialize in providing CNC turning, wire EDM, micro-milling, and contact insertion for perfect pin alignment and electrical consistency, including four-wire resistance and high frequency signal testing. Each precision socket is made of PEEK (polyetheretherketone) with dielectric strength 23 kV/mm; for high-voltage isolation, Torlon polyamide-imide with continuous temperature rating 260°C for burn-in applications, brass C36000 with electrical conductivity 28 percent IACS for contact housings, or beryllium copper C17200 with spring temper providing contact force 50 to 500 grams maintaining less than 10 milliohm resistance over 100,000 cycles for superb electrical performance and mechanical durability under test current of 100 milliamperes to 50 amperes in semiconductor ATE systems, PCB flying probe testers, IC burn-in ovens, and high speed digital test platforms, ensuring compliance with JEDEC standards and ISO 9001 certification.
milling

CNC Machining

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sheet metal

Sheet Metal Fabrication

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edm

Wire EDM

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casting

Metal Casting

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Aerospace
Materials & Finishes

Materials
We provide a wide range of materials, including metals, plastics, and composites.
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Finishes
We offer superior surface finishes that enhance part durability and aesthetics for applications requiring smooth or textured surfaces.
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Specialist Industries

you are welcome to emphasize it in the drawings or communicate with the sales.

Aerospace

Source custom aerospace & aviation Parts

Automotive

Automotive custom quality parts

Medical

Custom parts for medical industry

Robotics

Custom CNC Machining Service for Robotics Parts

Automation

Automation custom parts from Zintilon

Consumer Goods

Consumer goods, custom parts by Zintilon

New Energy

Custom parts for new and renewable energy

Semi Conductor

Source custom semi-conductor parts

Materials for Precision Sockets

As part of Precision Sockets for Testing Units, our CNC machine shop offers over 8 high performance polymers, copper alloys, and contact spring materials to accelerate test contact manufacture. Check compliance with JEDEC and ISO 9001 certification.

Aluminum

Aluminum Image

High machinability and ductility. Aluminum alloys have good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance.

Price
$ $ $
Lead Time
< 7 days
Tolerances
Down to ±0.003 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Stainless steel

Stainless steel Image

Stainless steel alloys have high strength, ductility, wear and corrosion resistance. They can be easily welded, machined and polished. The hardness and the cost of stainless steel is higher than that of aluminum alloy.

Price
$ $ $
Lead Time
< 7 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Steel

Steel Image

Steel is a strong, versatile, and durable alloy of iron and carbon. Steel is strong and durable. High tensile strength, corrosion resistance heat and fire resistance, easily molded and formed. Its applications range from construction materials and structural components to automotive and aerospace components.

Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.001 mm (routing)
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Titanium

Titanium Image

Titanium is an advanced material with excellent corrosion resistance, biocompatibility, and strength-to-weight characteristics. This unique range of properties makes it an ideal choice for many of the engineering challenges faced by the medical, energy, chemical processing, and aerospace industries.

Price
$$$
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Bronze

Bronze Image

Highly resistant to seawater corrosion. The material’s mechanical properties are inferior to many other machinable metals, making it best for low-stress components produced by CNC machining.

Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Brass

Brass Image

Brass is mechanically stronger and lower-friction metal properties make CNC machining brass ideal for mechanical applications that also require corrosion resistance such as those encountered in the marine industry.

Price
$$$
Lead Time
< 10 days
Tolerances
Down to ±0.005mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Copper

Copper Image

Few metals have the electric conductivity that copper has when it comes to CNC milling materials. The material’s high corrosion resistance aids in preventing rust, and its thermal conductivity features facilitate CNC machining shaping.

Price
$$$
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Zinc

Zinc Image

Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed.

Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Iron

Iron Image

Iron is an indispensable metal in the industrial sector. Iron is alloyed with a small amount of carbon – steel, which is not easily demagnetized after magnetization and is an excellent hard magnetic material, as well as an important industrial material, and is also used as the main raw material for artificial magnetism.

Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
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Magnesium

Magnesium Image

Due to the low mechanical strength of pure magnesium, magnesium alloys are mainly used. Magnesium alloy has low density but high strength and good rigidity. Good toughness and strong shock absorption. Low heat capacity, fast solidification speed, and good die-casting performance.

Price
$ $ $ $
Lead Time
< 7 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
View More Details
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FAQs: Vacuum Chamber Housings for Semiconductor Applications

Multi-axis CNC milling performs creation of chamber profiles along with mounting flanges, view ports, and service access doors as an integrated element of the chamber. Precision boring machines size and open large diameter ports and maintain concentricity within 0.005 inches for standardized vacuum flanges which conform to ISO, KF, and ConFlat standards. Face milling machines obtain the flatness and surface finish required on the O-ring sealing surfaces within 0.005 inches flatness and Ra surface finish of below 1.6 microns. Coordinate drilling achieves the accuracy required for the position of patterns for bolt holes within ±0.005 inches for mounting the flanges. Mounting threads are created by thread milling and electropolishing translates to stainless steel achieves Ra of below 0.4 microns by removing 10 to 50 microns of surface to reduce outgassing and particle adhesion. Distortion is reduced by stress-relief annealing.

The Aluminum 6061-T6, 5083, and 5086 characteristics include lightweight construction which reduces equipment floor loading and footprint, assisting in rapid temperature control which makes excellent thermal conductivity of 167 watts per meter-Kelvin and thermal conductivity, decreasing costs for larger processing chambers, easy machining for complex port integration and mounting features for vacuum chambers in construction, very low outgassing rates under 10⁻⁸ Torr-liters per second per square centimeter after required processing, and cost for large process chambers. Stainless Steel 304L and 316L provide maximum strength for balanced pressure atmospheric differential forces, and outstanding resistance to plasma fluorine and chlorine of the vacuum chamber materials, ultra-low outgassing under 10⁻⁹ Torr-liters per second electropolished vacuum chambers. which can be baked to 450~C for ultra-high vacuum processes. anodized aluminum exhibits excellent corrosion, abrasion resistance, and creation of hard surfaces at O-ring interfaces, electrical insulation for RF powered chambers, and vacuum chamber materials which in combination with polytetrafluoroethylene gaskets.

Vacuum chamber housings are fully integrated semiconductor fabrication equipment housings that provide a controlled vacuum environment for wafer processing. Process chamber housings can include various empty or integrated vacuum plasma etch, deposition, or ion implantation modules that operate at vacuum levels of 10⁻³ to 10⁻⁹ Torr. Various cryo-pump housings can be configured to provide ultra-high vacuum conditions of below 10⁻⁸ Torr. Other modules may include plasma confinement chambers for reactive ion etch and physical vapor deposition, as well as analytical chambers for measuring equipment. Special modules for 200mm, 300mm, and 450mm wafer processing include degas chambers, rapid thermal processing enclosures, pre-clean, and cryo-pump chambers.

Yes, we provide rapid prototyping to verify fit and test assembly, with same-day CAD-to-part capability available for critical projects. For custom automation cells and research platforms, we perform low-volume production of 20 to 500 brackets. For standardized robot models, we perform high-volume production of thousands to tens of thousands of brackets annually, incorporating complete dimensional inspection, flatness verification, and material certifications.

Brace covers ensure sealing surface flatness is within 0.005 inches across flange faces. Thus, ensuring sealing surfaces achieve leak rates below 10⁻⁹ std cc per second helium. O-ring groove dimensions sealing surfaces achieve leak rates below 10⁻⁹ std cc per second helium.

We provide comprehensive finishing solutions tailored to aerospace requirements:
Anodizing (Type II and Type III)
Passivation for corrosion resistance
Precision polishing for aerodynamic surfaces
Custom protective coatings and thermal barriers
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